.btn-container {
    text-align: center;
    margin: 30px 0 70px 0;

}

.filter-btn{
    min-width: 50px;
    padding: 5px 20px;
    border: 4px solid transparent;
    border-radius: 5px;
    font-size: 28px;
    font-weight: 600;
    color: darkgoldenrod;
    border: none;
    cursor: pointer;
    margin: 0 20px;
    transition: all 0.3s ease-out;
}
.filter-btn:hover {
    box-sizing: content-box;
    background-color: darkgoldenrod;
    color: #fff;
}
.filter-btn:focus {
    padding: 1px 16px;
    border: 4px solid goldenrod;
}